We use the best on the market..

We buy our foil from www.atticfoil.com. If you're a do-it-yourselfer, we're not greedy, give it a try, but call us if you need help, it's very long and tough work. Good luck. They sell the 29lb roll which is the heaviest and most durable. You can't tear this product with your hands.

We staple this product to the rafters of your roof to form a large aluminum tent in your attic as part of our Greenlows Attic system. The staples are applied every foot and our installations carry a lifetime warranty.

Radiant Barrier Foil is Superior to "Radiant Coating Paint"

First of all, reflective foil is a TRUE radiant barrier. It reflects 97% of the radiant heat that hits it. RADIANT PAINT is by definition NOT a radiant barrier at all. It is defined as a radiant coating because at best it blocks 75%. A true radiant barrier MUST reflect 90% or higher to meet both RIMA and the U.S. Dept. of Energy's standards. See the chart below. Now, more on radiant barriers.There are several suppliers of products misnamed "radiant barrier paint" that are designed to be sprayed on the underside of the roof decking in the attic. These "radiant barrier spray" products are paint solutions that include aluminum metallic flake additives designed to reflect heat. 

So called "radiant barrier paint" products are NOT true radiant barriers per the US Department of Energy. 

The EPA does not label paints and coating for the inside of roof decks (or attic) in the insulation program because paints and coatings do not meet the Federal Trade Commissions (FTC) definition of “home insulation.” The EPA qualifies paint only as a roof coating in our Roofs program (generally used for the top of a commercial building roof). Roof coatings are NOT insulation. They reflect solar heat off a roof rather than absorbing it keeping the building cooler.

The EPA DOES qualify radiant barrier insulation as ENERGY STAR because it meets the FTC definition of home insulation. (read more about what the EPA says about these spray paints): 

Radiant Barrier Definition : Per the Department of Energy (DOE), a product classified as a "radiant barrier" must have a low emittance of 10% or less and high reflectance of 90% or more.

Our foil insulation products have an emittance of 3% and a reflectance of 97%; far exceeding the DOE's radiant barrier minimum classification requirements. For more information, visit the Department Of Energy website.

These spray paints do not come close to Department of Energy's definition for a radiant barrier. 

David W. Yarbrough, Phd, PE of the Reflective Insulation Manufacturers Association (RIMA) tested the reflectivity and its converse (emissivity) of 16 leading radiant barrier paints and presented his results on June 20, 2006. As you can see from the testing results below, the emittance of radiant barrier paints is varied across manufacturer and products. ** NOTE: Only 4 of the products actually satisfy the ASTM requirements set forth for an interior coating intended to reduce radiant heat transfer to and from the coated surface.

Radiant barrier foils emit only 3% making them FAR SUPERIOR to radiant barrier paints.

Below are the results of the RIMA radiant barrier test. The full test can be viewed here:

Emittance Definition: emittance is the amount of radiant heat that passes through the product (that is NOT blocked)

Product Manufacturer/Distributor

Emittance -LOWER is BETTER
Radiant Barrier Foil Insulation .03 Lowest Possible - BEST
Radiance e-0.25 Chemrex - Now owned by BASF .23
HeatBloc-75 STS Coatings .22
E-Barrier Sherwin Williams .36
Therma-Guard Silver United Community Services of America .57
LO/MIT I II Solec-Solare Energy Corp .23
HeatShield R-20 Kwik Co .90 - Highest Tested-WORST
Radiosity 3000 Green Building Supply .89
Hy-Tech Barrier Coat #85 - A Hy-Tech .66
Hy-Tech Barrier Coat #85 - B Hy-Tech .70
Insuladd-RBC Tech Traders .59
Koolcoat Pawnee Specialties .86

Because Foil radiant barriers block substantially more heat than so-called "radiant barrier paints," your Return-On-Investment (ROI) can be achieved much sooner.

For more information on the misleading "radiant barrier paints," please see this recent article published in the RSI newsletter.